Apparatus for generating acetylene gas



(No Model.)

0. H. BELLAMY. APPARATUS FOR GENERATING AGE TYLENE GAS.

Patent-ed Nov. 2, 189.7.

UNITED STATES PATENT rica",

CHARLES H. BELLAMY, OF SOUTH HADLEY FALLS, MASSACHUSETTS.

' APPARATUS FOR GENERATING ACETYLENE GAS.

SPECIFICATION forming part of Letters rate'nt No. 592,7 59, dated November 2, 1897. Application filed January 27, 1897.- Serial No. 620,929. (No model.)

To all whom it may concern:

Be itknown that I, CHARLES H. BELLAMY, a subject of the Queen of Great Britain, and a resident of South Hadley Falls, in the county of Hampshire and State of Massachusetts, have invented certain new and useful Improvements in Apparatus for Generating and Burning Acetylene Gas, of which the follow ing is a specification.

This invention relates to improvements in an apparatus for the generation and burning, for illuminating or other purposes, of acetylene gas,employing calcium carbid and means for supplying water-thereupon, and particularly relates to an apparatus which comprises a closed generator chamber or receptacle in which the calcium carbidis placed, a separate water-receptacle above the generator, a suitable waterway or passage leading from the generated acetylene become sufficient or eX- cessive. I

My present invention embodies, in an apparatus for generating and burnin g acetylene gas, a closed receiver-generator chamber, a water-receptacle, and a subreceptacle having a piston or plunger therein, the subreceptacle being connected with the main water-receptacle to receive Water therein under the piston and said piston having a passage opening at its under side to the subchamber, which passage is continued in a suitable hollow stem or pipe of the piston into the generator-chamber,.and a diaphragm or wall located in the generator-chamber and adapted to be movably controlled by the gas-pressure in the generator and connected with the said passaged piston to correspondingly move it, all whereby the lowering of the pressure in the generator will permit the piston to descend,

displacing thewater in the subreceptacle through the piston into the generator.

- ,The invention further consists in an apparatus for generating and burning acetylene gas, .such as" characterized in the statement of the nature of this invention, having further and also subordinate provisions and features of vconstruction tending to increased efficiency anddesirabilityof the apparatus, all as will hereinafter fully appear, and be set set forth in the claims.

Reference is to be had to the accompanying drawings,in which an apparatus exemplifying my invention is shown, Figure 1 being a central vertical section. Fig. 2 is a sectional view centrally through some of the parts drawn on a somewhat larger scale for purposes of clearer illustration.

The drawings here provided illustrate a novel acetylene generating and burning apparatus comprising a closed generator A, in which may be received the calcium carbid, a water-receptacle B, a cylinder C, intermediately partitioned, double pistons a a connected by a rod 1), which plays through the cylinder-partition h, the piston CL above the partition having a passage 61 therein which radially and downwardlyleads to communication with the cylinder-space B containing water, between such piston and the cylinderpartition, which is the subreceptacle for Water, as herein termed, said passage 01 continuing in the passage 61 down through the stem or piston-rod b and through the lower piston, a check-valved passage a, leading from the water-receptacle B into the subreceptacle B said double'piston of itself by reason of its weight constituting a suitable resistant against the gas-pressure which is exerted in the generator-chamber against the lower piston, or which double piston has applied thereto a weight or spring j, as shown, to impart the suitable resistance against the gas-pressure, all whereby with suitably high'gas-pressure or excessive pressure in the generator the double piston will be forced thereby in one direction, insuring a cessation of the passage of water through the aforementioned waterway, and whereby as the gaspressure becomes diminished the piston a, descending under its weight or its spring, will effect a the introduction of the calcium carbid and for the withdrawal of the refuse. These covers are closed by the screw-clamps Z P. The water-receptacle B is supported upon the top of the generator, preferably by the screw connection seen at e. The base of the water-receptacle is here shown to constitute the top of the generator, and this base is centrally apertured, as seen at 12, and supports the cylinder 0, which has the upper and lower cylinder-compartmentsfand 9, divided by the cross-partition h. This cross-partition h is constituted by the central portion of a casting 7L2, which is in the form of a double cup, into which opposing cup-openings the cylinder-sections 13 14 are screwed. The upper piston has in its upper side the conical valveseat 15, which is at the upper end of tubepassage d and at the junction therewith of the passage d, which leads radially through the piston and downwardly opens at the under side thereof to the subreceptaele B as shown. The said conical valve-seat is surrounded bythe hub which receives therein with a screw engagement the sleeve 18, centrally bored and screw-threaded and having its. bore terminate in the conical valve-seat 10 above valve-seat 15.

The screw-rod has on its lower end the double cone-valve m and at its upper end the head to facilitate turning it. The double "alve on may be turned and screwed up to close in the upper valve-seat 10, then leaving passage (Z (Z continuous and open, or the valve m may close with its seat 15, shutting off the passage of any water from the subreceptacle 15 down through the piston-passage (F. The upper piston a has the depending hub or boss 22, through which the passage (Z downwardly leads, receiving (screwing thereon) the thimble-shaped section 21, which is internally form ed with a seat for the conical check-valve 23, which opens inwardly and permits the water to flow, as piston a is falling, through the central opening in the port (Z in said thimble-section 21, whereby the water may in its displacement by the piston be forced through the piston and piston-rod or stem.

The subreceptacle B has for its passages II, which lead thereinto from the main waterreceptacle l3, inwardly-opening check-valves a, one or more, so provided and arranged that water may flow from chamber 13 into subehamber 13 under the piston a, but so that as the piston has its downward movement or vibration the water in the subchamber cannot return to the main receptacle B, but can onlypass through the port (1 and passage (M A practicable and eflicient construction for the provision of the fittings for checkvalves )7, it consists in constructing external hubs on the upper cup-like part of the said casting 71 drilled with the inleadin g passage or passages, as shown, and providing the cups or thimbles 27, having the internal coneseats for the valves n to screw on said bosses, each of the thimbles having a port 28.

Stuffing boxes are advantageously though not necessarily provided where the piston-rod plays through the cylinder-partition h.

The lower piston a carried by the rod 1), has the pistonrod passage (1 continued therethrough, terminating in the downwardly-flaring conical valve-seat 0, at which is equipped a check-valve p.

The thimble or check-valve case 33 screws onto the lower end hub of the piston and has ports 34 leading downwardly through it into the generator-chamber.

G represents the acetylene-gas pipe leading from the generator to any place to the exterior thereof and provided with a suitable burner G It will be seen that the lower piston a is in substance a diaphragm or the wall of a collapsible chamber, the remainder of which chamber is constituted by the lower division of the cylinder and its partition, and that this piston-constituted diaphragm is susceptible of delicate vibratoryaction under inequalities in the gas-pressure in the generator, and in order that this delicacyof action may prevail I provide a means for relieving the piston-diaphragm of any effects of aircushioning 011 its upward movement or vacuum 011 its descending movement. This, as shown, consists of a flexible, preferably elastic, sack, as a rubber bag q, in the receptacle B, connected by the tube (1 with the cylinder-chamber between the partition hand the lower piston a By turning the rod or stem 20 the valve m i may be set down to close the passage (Z (Z so that the apparatus may at pleasure be rendered inoperative for the generation of acetylene gas at such times as the same is not being consumed at the burner or otherwise utilized by being withdrawn from the generator. On the other hand, when the valve m is raised, leaving the passage (Z (Z open, it seats itself in the upper seat 19 therefor and effectually prevents the gas from working its way through the piston-rod to leak into the atmospheric air. This leakage is further prevented by the provision of the check-valve p at the bottom of the piston a this valve downwardly opening when the gas-pressure becomes lowered and the water is displaced from the subreceptacle B by the then descending upper piston a, this said valve, when the gas-pressure is sufficient, being by such pressure held upwardly to its seat.

The cheek-valved passage or passages leading from the main water-receptacle into the subreeeptacle 13 as is plain, permit the inflow of the water from the main receptacle into the subreceptacle after water displacement from the latter and when the upper piston is rising.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In an apparatus for generating and burning acetylene gas, a closed receiver-generator chamber, a water-receptacle and a subreceptacle, having a piston or plunger therein, the subreceptacle being connected with the main water receptacle to receive water therein under the piston, and said piston having a passage, opening at its under side to the subchamber, which passage is continued in a suitable hollow stem or pipe of the piston, into the generator-chamber, and a diaphragm or wall locatedin the generator-chamber and adapted to be movably controlled by the gaspressure in the generator and connected with the said passaged piston to correspondingly move it, all whereby the lowering of the pressure in the generator will permit the piston to descend displacing the water in the subreceptacle through the piston, into the generator, and a gas-pipe leading from the generator, substantially as described.

2. In an apparatus for generating and burn ing acetylene gas, a closed receiver-generator chamber, a water-receptacle and a subreceptacle, having a piston or plunger therein, the subreceptacle being connectedwith the main water -receptacle to receive water therein under the piston, and said piston having a passage, opening at its under side to the subchamber, which passage is continued in a suitable hollow stem or pipe of the piston, into the generator-chamber, a valve which, at pleasure may be operated to close the said passage in the piston against the passage of water from the subchamber therethrough, and a diaphragm orwall located in the generator-chamber and adapted to be movably controlled by the gas-pressure in the generator and connected with the said passaged piston to correspondingly move it, all whereby the lowering of the pressure in the generator will permit the piston to descend, displacing the water in the subreceptacle through the piston into the generator, and the gas-pipe leading from the generator, substantially as described.

3. In an apparatus for generating and burning acetylene gas, a closed receiver-generator chamber, a water-receptacle and a subreceptacle, having a piston or plunger therein, the subreceptacle being connected with the main water-receptacle to receive water therein under the piston, and said piston having a passage opening at its under side to the subchamber, which passage is continued in a suitable hollow stem or pipe of the piston, into the generator-chamber, and a collapsible chamber having a movable diaphragm or wall located in the generatorchamber and said diaphragm adapted to be movably controlled by the gas-pressure in the generator, and connected with the said passaged piston to correspondingly move it, all whereby the lowering of the pressure in the generator will permit the piston to descend, displacing the water in the subreceptacle through the piston into the generator, an elastic sack located outside of the generator and connected with said chamber having the movable or collapsible diaphragm-wall, and a gas-pipe leading from the generator, substantially as described.

4:. In an apparatus for generating and burning acetylene gas, a closed generator-chamber, a water-receptacle and a subreceptacle, having a piston or plunger therein, a passage having a check -valve therein, which connects the subreceptacle with the main waterreceptacle and said piston having a passage opening at its under side to the subchamber, which passage is continued in asuitable hollow stem or pipe of the piston, into the generator-chamber, a downwardly-opening checkvalve in said piston-stem passage and a diaphragm or wall located in the generator-chamber and adapted to be movably controlled by the gas-pressure in the. generator and connected with the said passaged piston to correspondingly move it, all whereby the lowering of the pressure in the generator will permit the piston to descend, displacing the water in the subreceptacle through the piston into the generator, and the gas-pipe leading from the generator, substantially as described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 25th day of January, 1897.

CHARLES H. BELLAMY.

Witnesses: I

WM. S. BELLOWS, M. A. CAMPBELL. 

